This is a prequil to the Mitch Rapp saga.
Mitch finishes the CIA training and is unleashed on the terrorist group responsible for the Pan Am Lockerbie attack.
He's given a list of names of the terrorists and he eliminates them one by one.
When he gets the name of his next victim and arrives at his location, something doesn't seem right. After Mitch eliminates the terrorist, the room erupts in gunfire by others who were waiting for Mitch.
He barely escapes and wonders if he was set-up.
This is a feel good story of retribution where Mitch is accomplishing something that no one else has. He seeks out the terrorists who thought they were shielded from revenge and Mitch eliminates them. He is able to do this by acting outside the law.
He does make some enemies inside the CIA because of his success and that he works solo.
The action is constant and there are a number of surprises and plot twists.
Everything comes together in a satisfying conclusion.